I don’t know if anyone else besides me enjoys analyzing consumption and numbers related to the electricity and gas price caps and their forecasts, so here is just an attempt:
Forecast: Electricity 2,400 kWh per year, consumption since 06/04/22 at 2,917 kWh
Forecast: Gas 20,000 kWh per year, consumption since 06/04/22 at 52.81 m3 (cubic meters) → converted with factor 10 results in 528.1 kWh
The following is for those who want more detailed information:
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Single-family house (Leipzig district) with underfloor heating / tiles throughout
Built according to energy saving regulations (gas condensing boiler plus solar thermal system)
Approx. 139 sq m (1,495 sq ft) of living area
Residents are two adults, no children, home all day
Moved in early August 2022
Electricity and gas meters have been running since about mid-June 2022
Until September 2022, supply was via temporary contract; since October 2022, basic supply
Special features: sauna (operated once a week using high-voltage power) and home brewing beer (about once a month)
Thermal final energy per sq m: 37.57 kWh/m2a – auxiliary final energy per sq m: 2.87 kWh/m2a – primary energy per sq m: 46.5 kWh/m2a
Edit: Unfortunately, I was no longer able to change the title to "...-price cap," which would be more accurate.
Forecast: Electricity 2,400 kWh per year, consumption since 06/04/22 at 2,917 kWh
Forecast: Gas 20,000 kWh per year, consumption since 06/04/22 at 52.81 m3 (cubic meters) → converted with factor 10 results in 528.1 kWh
The following is for those who want more detailed information:
-------------------------------------------------------------------------
Single-family house (Leipzig district) with underfloor heating / tiles throughout
Built according to energy saving regulations (gas condensing boiler plus solar thermal system)
Approx. 139 sq m (1,495 sq ft) of living area
Residents are two adults, no children, home all day
Moved in early August 2022
Electricity and gas meters have been running since about mid-June 2022
Until September 2022, supply was via temporary contract; since October 2022, basic supply
Special features: sauna (operated once a week using high-voltage power) and home brewing beer (about once a month)
Thermal final energy per sq m: 37.57 kWh/m2a – auxiliary final energy per sq m: 2.87 kWh/m2a – primary energy per sq m: 46.5 kWh/m2a
Edit: Unfortunately, I was no longer able to change the title to "...-price cap," which would be more accurate.
Winniefred4 Nov 2022 11:18Tolentino schrieb:
But please with two full weeks of proper frost in January through February, so that more mosquitoes die. Yes, that is an important point – we do urgently need frost for the environment (many plants, including food crops, and animals). My comment was only related to the economy and a possible gas shortage. Personally, I love snow and frost, and I wouldn’t mind a continuous snow cover from December through February^^.
Pinkiponk schrieb:
Not everything we do here in the forum has to make sense; sometimes you can just do something for fun!!! 🙂 🙂 🙂 You’re not doing it for the forum, but because you want to get some clarity in a comparison. And let me tell you: that just doesn’t work when comparing apples and oranges 😉
X
xMisterDx4 Nov 2022 15:16The heat pump might be ahead with an annual performance factor of 4, which is hardly achievable with an air-to-air heat pump. Most of them are around 3 to 3.5.
Electricity would cost about 42 cents at 12 cents for gas.
If you get the heat pump for free, since the extra costs compared to a gas heater are around 12,000 EUR. To reach an annual performance factor of 4, it gets significantly more expensive because the underfloor heating needs to be optimized for a low supply temperature. That means more piping, closer spacing, more heating circuits, more controllers, more work...
So an underfloor heating system optimized for a 28°C (82°F) supply temperature with an air-to-water heat pump will probably cost 15,000 to 20,000 EUR more than a gas heater.
You won’t recover that even over 30 years. By then, the heat pump will likely be broken and need replacing...
And if we also talk about geothermal with an annual performance factor of 5, which requires a deep borehole costing around 20,000 EUR... no thanks 😉
PS:
15,000 EUR at a current interest rate of 4%, by the way.
Electricity would cost about 42 cents at 12 cents for gas.
If you get the heat pump for free, since the extra costs compared to a gas heater are around 12,000 EUR. To reach an annual performance factor of 4, it gets significantly more expensive because the underfloor heating needs to be optimized for a low supply temperature. That means more piping, closer spacing, more heating circuits, more controllers, more work...
So an underfloor heating system optimized for a 28°C (82°F) supply temperature with an air-to-water heat pump will probably cost 15,000 to 20,000 EUR more than a gas heater.
You won’t recover that even over 30 years. By then, the heat pump will likely be broken and need replacing...
And if we also talk about geothermal with an annual performance factor of 5, which requires a deep borehole costing around 20,000 EUR... no thanks 😉
PS:
15,000 EUR at a current interest rate of 4%, by the way.
X
xMisterDx4 Nov 2022 15:19Oh, by the way... anyone who thinks electricity will get cheaper, considering all the investments we have to make in power grids, storage, expansion, and so on in the coming years, doesn’t have a realistic perspective.
At the moment, the expansion of solar energy is mainly carried out by private builders at their own expense. But the electricity needs to be stored during the summer... electric cars alone are not sufficient for that.
At the moment, the expansion of solar energy is mainly carried out by private builders at their own expense. But the electricity needs to be stored during the summer... electric cars alone are not sufficient for that.
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